Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Restructuring and other - Restructuring Accrual Rollforward (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Restructuring Reserve [Roll Forward]
Accrual additions	$ 1.1	$ 4.2	$ 10.3	$ 6.9
November 2016 Plan
Restructuring Reserve [Roll Forward]
Restructuring accrual, beginning balance			16.4
Accrual additions			2.2
Cash payments and other			(18.6)
Restructuring accrual, ending balance	$ 0.0		$ 0.0